Crown guard



FIG. 1 is a top view of the invention;

FIG. 2 is a bottom view of the invention;

FIG. 3 is a back view of the invention;

FIG. 4 is a side view of the invention;

FIG. 5 is a front view of the invention;

FIG. 6 is another side view of the invention, showing the side opposite that shown in FIG. 4; and,

FIG. 7 is a perspective view of the invention.

The portion of the watch that is shown in broken lines in the drawings is for illustrative purposes only and does not form part of the claimed design. 

The ornamental design for a crown guard, as shown and described. 